FC1500-Quantum

A P P L I C AT I O N S

Complete solution for Quantum 2.0 applications■ Complete Solution for Sr, Yb, Ca, Sr+,Yb+, Ba+, Ca+, Others■ Quantum Computing, Sensing andSimulation■ Optical Atomic Clocks Operation andRF Down-conversion and Time ScaleRealization■ Atom Interferometry■ Laboratory Master Reference for Sub-Hz
Control of multiple CW Lasers

F E AT U R E S■ Complete Solution, ready to be interfacedwith the Physics Package■ Up to 250 MHz Repetition Rate for ample
flexibility on Target CW Laser Frequencies■ High-fidelity Spectral Purity Transfer from
Optical Reference to CW Lasers■ Integration of CW Lasers from VariousProviders■ CW Output Power from mW to W Level■ Fully Rack-mounted■ Full Remote Control

The FC1500-Quantum provides exquisite low noise comb and CW light over a wide frequency range in a fully rack-mounted system. It is the all-in-one ultra-stable frequency
comb-based solution for your Quantum 2.0 application. Whether you are building an ion/
neutral atom-based quantum computer, a quantum optical clock, or an atom interferometry
experiment, Menlo tailors your system according to your requirements and delivers the optical engine to operate your physics experiments. The system consists of an ultra-stable cavity
stabilized laser with sub-Hz linewidth from Menlo’s Optical Reference System (ORS) line,
an ultra-low-noise optical frequency comb (FC1500-ULN or SmartComb) and as many CW
lasers as required for your experiment.

K E Y S P E C I F I C AT I O N S■ Absolute Stability down to <7 x 10-16 (1 s)■ Long-term Stability defined by User-pro-vided Precision Spectroscopy Signalor SI-traceable GPS Receiver Signal(Adaptive De-drifting)■ Ultra-stable μWave/RF Output Signals,
Phase coherent to the Optical Reference■ Up to 24 Channels dead-time free Lambda-frequency Counters for Precision
Measurement■ OEM Wavemeter for Laser Wavelengths
Tuning and Monitoring

The unique patented Menlo comb technologies allow the transfer of spectral purity, narrow
linewidth, and high stability of the ORS throughout the entire comb spectrum, and enable thedown-division to the RF domain without any loss of phase coherence. The purity transfer isfuture proof, with the residual comb phase noise being orders of magnitude below the highest stability optical reference demonstrated to date. These features enable the minimizationof the Dick effect in optical clocks, high phase coherence to maximize optical and microwave qubit fidelities, and last but not least, 24/7 cycle-slip-free and drift-compensated laser operation. The FC1500-Quantum is ready to enable and enhance your state-of-the-art
Quantum Application.

A D D I T I V E VA L U E S■ Scalability of Optical Power without lossof Fidelity■ Metrological Fiber-link Network ready

SYSTEM SCHEME – FC1500-QUANTUM
Exemplary systemfor neutral strontium

de-drift

CW
ORS

707
fiber link

813
CW922
CWCW

698
CW

689
CW679
CW

ULN Comb

Ultrastable µ-wave

Technology protected by patents US7026594, DE10044404, US7804863, US8995796, US8873601, JP4668423, JP5615397, CN103311780

(1)

(10)

FC1500-Quantum
CW

(11)
(12)

CW

Wavemeter
Wavelength meter

Wavemeter

(19)

RIGOL

CW Laser

Single-frequency laser

CW Laser

(20)

(2)
(13)
(3)

(14)

SYNCRO
Synchronization & Control

CW Laser

Single-frequency laser

CW LaserXOD UnitExtended optical detection

XOD Unit

PowerEsc

Made inGermany

RF distribution

(4)
(5)

(15)

SYNCROEsc

XOD Unit

Power

Made inGermany

Extended optical detection

XOD Unit

Frequency counters(22)

LAC-1550

(6)

(16)
(7)

(21)

µ-wave unit
photonic microwave generationµ-wave Unit

ORS

PC & Real-time analyzer

Sub-Hz Linewidth Optical Reference System(17)

SPT Unit

Spectral purity transfer

SPT Unit(8)
Made inGermany(9)(18)
Chiller

FC1500-ULN
Optical frequency comb

FC1500-ULN

Made inGermany

FC1500-QUANTUMELECTRONICS RACKOPTICS RACKOPTICAL REFERENCE SYSTEM RACK

(1) 24” touchscreen for full system control (10) Additional space for further units
and monitoring(19) Oscilloscope(2) SYNCRO 5-HU control electronics for CW (11) Wavemeter (up to 8 channels)
lasers and Fiber noise cancellers(20) Ion getter pump controller(3) SYNCRO 3-HU control electronics for fre- (12) CW lasers (up to 4 ECDLs or 2 High Power (21) SYNCRO PDH locking electronics andquency comb
Lasers)ultra-low-RIN laser with driver(4) Radio frequency reference distribution(13) CW lasers (up to 4 ECDLs or 2 High Power (22) High-finesse Fabry-Perot cavity in vacuumLasers)
assembly on active anti-vibration platform(5) Frequency counter (up to 24 dead-time (14) Extended Optical Detection frequency
comb extensions*
free channels, Lambda-type)(6) Pump diode drivers and controllers(15) Extended Optical Detection frequency
comb extensions(7) PC with real-time signal analyzer(16) Ultrastable photonic μ-wave and radio
frequency unit

(8) Power supply, Interlock, DC/DC converters(17) Spectral Purity Transfer ultra-high stabilityfrequency comb extension*(9) Chiller for optics rack units cooling(18)

Ultra-low-noise frequency comb and f-2f
interferometer.

*The XOD is composed by an erbium-doped fiber amplifier and non-linear fibers for the generation of comblines at the target frequency ranges (from 500 nm up
to 2.1 um) and beat detection units for generation ofRF beat notes. The SPT unit is similar to the XOD, but
has means to ensure even higher stability at longer
timescales and may include the most critical CW laserand Fiber Noise Canceller to deliver the sub-Hz andlong-term stable light to the Physics package.

OPTICAL REFERENCE SYSTEM

Frequency stability in the mid-10-16 level at 1 s

Fractional Frequency Stability ( )SSB Phase noise PSD [dBc/Hz]

2040
60
80

100100101 102 103 104
Offset frequency [Hz]105

The rack-mounted ORS of theFC1500-Quantum is characterized
in terms of single-sideband opticalphase noise power spectral density and fractional frequency stability.
Menlo Systems carries on detailed
analysis for each system to guarantee
ultimate performance and uninterrupted operation. A three-cornered
hat technique is used to provide absolute noise analysis of the ORS.

10 14

ORS FS-XTAL010 15

10 16
10 1

106

ORS FS-XTAL
Ref 1
Ref 2
101
100
Averaging time (s)102

U LT R A - L O W - N O I S E S P E C T R A L P U R I T Y T R A N S F E R

Comprehensive out-of-loop qualifications of Spectral Purity transfer before shipping
SPT to CW laser at 698 nm
Out-of-loop

4050
60
70
80
90100
110

10 16

Fractional Frequency Stability ( )SSB Phase noise PSD [dBc/Hz]30

10 1710 18
10 19
SPT to CW laser at 698 nm
Out-of-loop

10 20101

100102 103 104 105
Offset frequency [Hz]106

10 1101100102
Averaging time (s)103

The ultra-low-noise frequency comb
is qualified against a reference system. The Spectral Purity Transfer performance is analyzed for short-term
phase noise performance and longterm fractional frequency stability, toensure negligible additive noise. Here,the residual phase noise of an ECDL
at 698 nm in the FC1500-Quantum
is measured against a reference system, proving the exquisite transferof phase-coherence from the opticalreference system to the high Q-factor
clock transition in neutral Strontium.

P H A S E L O C K L O O P S S TA B I L I T Y O F 5 C W L A S E R S

Ultra-stable phase lock loops ensuring negligible additive noise to the CW Lasers

Fractional Frequency Stability ( )10 17

We believe in fully phase-locked systems, being the only path for phasecoherently transfer the purity fromone specific optical frequency to allfrequencies. Here the robustness of
our phase-lock-loops is measured,demonstrating the negligible additivenoise and the full control of the disciplined CW lasers.

10 1810 19679 nm
689 nm698 nm707 nm922 nm

10 2010 21100101103102
Averaging time (s)104FC1500-Quantum
Complete solution for Quantum 2.0 applications
S P E C I F I C AT I O N S

FC1500-QUANTUM

Optical Reference System (ORS) FSR

1.2 GHz or 3 GHz (Refer to ORS product lines)

Optical Reference Stability<5 x 10-15 at 1s, down to <7 x 10-16 at 1sr (ORS option dependent)

Residual ORS Phase Noise PSD<-5 dBc/Hz at 1 Hz;<-50 dBc/Hz at 100 Hz,<-80 dBc/Hz at 10 kHz (ORS option dependent)

ORS Spurious<-20 dBc (ORS-XTAL)Comb Spacing (FSR)

250 MHz, 125 MHz or 100 MHzt

Fractional Comb Stability (modADEV)1<1 x 10-17 at 1 s, <5 x 10-18 at 100 st

Fractional Comb Accuracy (relative)<1 x 10-18 for t > 100 st

1

Residual Comb lines Phase Noise PSD1 < -40 dBc/Hz at 1 Hz; <-60 dBc/Hz at 100 Hz, <-90 dBc/Hz at 10 kHz
Comb Linewidth<1 Hz (with Menlo ORS)CW Laser Spectral Range

Ultraviolet to Infrared (OEM integrated or user provided)

CW Laser Power

From mW to Watt level (application and laser dependent)

PLLs Behavior

Cycle-slip free for weeks at a time for all phase-lock-loops¥

1The comb stability, accuracy and phase noise are qualified by upper-limit measurements against a reference when both combs are phase-locked to an ORS. The absolute accuracy
is given by either the user physics-package or the RF reference (e.g., GPS signal).rORS-type and system configuration dependent. tComb-type and system configuration dependent.
¥Enables continuous phase-coherent measurements and uninterrupted spectral purity transfer.

OPTIONSReference System
Frequency Comb
Optical Comb Extensions
500 – 2100 nm
Each comb extension is tailored for optimum signal-to-noise ratio

Menlo Systems ORS, ORS-Compact, ORS-Mini
Menlo Systems FC1500-250-ULN, FC1500-ULNPLUS, SmartComb
XOD: eXtended Optical Detection unit
Comprise high SNR integrated beat detection unit for CW laser phase locking
SPT: Spectral Purity Transfer Unit
For ultra-high stability operation – relevant for supporting state-of-art optical clocks and beyond

Embedded Electronics

Modular Menlo Systems SYNCRO Electronics for phase-locking, signal amplification and distribution. Up to8 or 12 CW laser controls per 5U SYNCRO unit (laser-type dependent).

CW Lasers

ECDLs and amplified systems, DFB-fiber lasers, Ti:Sapphire and other DPSS lasers (we select theoptimal solution for your application)

Others

FNC: Fiber noise canceller for ultra-narrow linewidth signal delivery to user Physics package;
Microwave: Ultra-stable RF and Microwave outputs;
GPS: 10 MHz Frequency reference with SI-traceability GPS receiver;
WLM-NIR / WLM-VIS: Rack-integrated wavemeter (configuration dependent)

REQUIREMENTS
Operating Voltage
Frequency
Power Consumption
Cooling Requirements
Operating Temperature
Dimensions/WeightO R D E R I N G I N F O R M AT I O N
Product Code100/115/230 VAC
50 to 60 Hz~1 kW (configuration dependent)
closed cycle chiller included (rack-mount or separate)
22 ± 5 °C
3×19” racks, each approx. 140 kg (configuration dependent)

FC1500-Quantum

Please call for pricing. Specifications are subject to change without notice. Custom modifications are available, please inquire.

Menlo Systems GmbH
T+49 89 189 166 0sales@menlosystems.com

www.menlosystems.com

Menlo Systems US
T+1 303 635 6406
ussales@menlosystems.com

Menlo Systems Japan
T+81 907 409 20 21
jpsales@menlosystems.com

Invisible laser radiation
avoid exposure to beam
Class 4 laser

Menlo Systems ChinaT+86 21 6071 1678
chinasales@menlosystems.com

D-FC1500-Quantum 0